Currently, the most used method to measure brain activity under a non-invasive procedure is the electroencephalogram (EEG). This is because of its high temporal resolution, ease of use, and safety. These signals can be used under a Brain Computer Interface (BCI) framework, which can be implemented to provide a new communication channel to people that are unable to speak due to motor disabilities or other neurological diseases. Nevertheless, EEG-based BCI systems have presented challenges to be implemented in real life situations (...) for imagined speech recognition due to the difficulty to interpret EEG signals because of their low signal-to-noise ratio (SNR). As consequence, in order to help the researcher make a wise decision when approaching this problem, we offer a review article that sums the main findings of the most relevant studies on this subject since 2009. This review focuses mainly on the pre-processing, feature extraction, and classification techniques used by several authors, as well as the target vocabulary. Furthermore, we propose ideas that may be useful for future work in order to achieve a practical application of EEG-based BCI systems toward imagined speech decoding. (shrink)

Cualquiera que sea la opinión que uno tenga sobre la participación de la Iglesia católica en los debates políticos del Ecuador, nadie negará que ha sido y sigue siendo un actor importante de estos debates. Conocer sus ideas políticas contribuye a entender mejor este rol y a juzgarlo con más fundamento y menos apasionamiento. Por esto, el actual volumen reúne textos selectos de cinco pensadores católicos ecuatorianos representativos, desde fines del siglo XIX hasta las últimas décadas del siglo XX. Hablamos (...) de: • Monseñor Federico González Suárez (1844 – 1917). Historiador, arqueólogo, Obispo de Ibarra (1895 – 1905) y Arzobispo de Quito (1906 – 1917). • Cardenal Carlos María de la Torre (1873 – 1968). Arzobispo de Quito (1933-1967) y Cardenal desde 1953. • Julio Tobar Donoso (1894 – 1981). Jurista, diplomático, historiador. • Cardenal Pablo Muñoz Vega (1903 – 1994). Arzobispo de Quito (1967- 1985) y Cardenal desde 1969. • Monseñor Leonidas Proaño (1910 – 1988). Obispo de Riobamba (1954-1985) y candidato al Premio Nobel de la Paz en 1986. El objetivo de esta publicación es ofrecer una síntesis coherente del pensamiento político de estos autores, a pesar de las diferencias que entre ellos existen. No ofrecemos una compilación sobre “el” pensamiento político católico, así dicho en general, porque sería exhaustivo y pretencioso. Nos limitaremos a presentar una síntesis que nos introduzca a las principales cuestiones sociales y políticas que han preocupado a estas cinco figuras. Este trabajo tiene naturalmente sus límites debidos al amplio espacio de tiempo considerado, las múltiples cuestiones políticas implicadas y la productividad de los autores, todos ellos pensadores a la vez que personas de acción. (shrink)

El artículo presenta un análisis de cuatro temas centrales de Sen: su visión sobre el ser humano, la libertad individual, la evaluación moral y los derechos, y la igualdad. Con esto quiero mostrar que estas ideas no sólo son consistentes, sino que explican muchas de las reflexiones sobre temas sociales y económicos que lo han convertido en un referente en estas áreas. En las conclusiones presentaré una síntesis e interpretación de estas ideas fundamentales, mostrando cómo constituyen un núcleo filosófico y (...) qué relaciones mantienen entre ellas. Mi objetivo no es encasillarlo en algunas de las corrientes de filosofía actuales, sino destacar la solidez y pertinencia de su aporte filosófico, algo sumamente útil en un tiempo como el nuestro, deseoso de ideas frescas para los acuciantes problemas de siempre. (shrink)

The objective of this research is to identify relationships between social context dimensions and hardiness in elite weightlifting athletes. Methods: The design: non-experimental, cross-sectional and correlational, the participants were 20 athletes who belong to the elite as the national team of Mexico, they are between 19 and 28 years of age, M = 22.05 SD = 2.91, 8 men (40%) and 12 women (60%). 2 instruments were used, the first is the Perception of Factors Related to Excellence in Sport (PFED), (...) (Simón, 2009) consisting of 54 items 6 variables, coach, environment and resources, athlete, family, nature of training and characteristics of the training and the second the questionnaire of hardiness in Central American and Caribbean Athletes (PRDCC) (Ponce, 2017; Ponce-Carbajal et al. 2015) of 18 items and three variables, commitment control and challenge. In the procedure, a file was created in google forms and coaches who are in charge of athletes from the Mexican national weightlifting team were contacted. The statistical analyzes used were frequencies, descriptive, reliability, and Spearman's bivariate correlations. Results: Adequate internal consistency in almost all the variables, between.40 and.92 in the 2 questionnaires. In the correlations between variables of the social context and those of the hardiness, relationships were evidenced between the total resistant personality and the nature of the training with an r =.767** and the challenge variable correlated with two, the first is the nature of the training r =.834** and with the characteristics of training r =.671**. Conclusion, the relationships between the variables of the social context and the resistant personality are confirmed. (shrink)

The objective is to identify the relationships between resistant personality variables and coping strategies with diving athletes. Methods: The design is cross-sectional, non-experimental, and correlational, the sample consists of 13 athletes from the national diving team, between 18 and 23 years of age, M = 20.31 SD = 1.54, 7 men (53.8%) and 6 women (46.2%). 2 instruments will be used, hardiness in Athletes from Central America and the Caribbean (PRDCC) by Ponce et al. (2015) of 18 items. The (...) other is the Approach to Coping in Sport Questionnaire, ACSQ-1, in the Spanish version (Kim et al., 2003), the questionnaire is made up of 28 items. The procedure was completely online, the link was sent with the instruments to the coaches of the national diving team of Mexico and Colombia. Statistical analyzes were performed on frequencies, descriptive, reliability, and Spearman's correlations. Results: Adequate internal consistency in almost all the variables, between.62 and.92 in the 2 questionnaires. The existence of relationships between the variables of hardiness and approach to coping in sport is confirmed in most of its variables and as a whole. Conclusion, athletes are capable of solving their problems with a certain calm of mind if they let stress influence their decisions. (shrink)

Background Paternalism/overprotection limits communication between healthcare professionals and patients and does not promote shared therapeutic decision-making. In the global north, communication patterns have been regulated to promote autonomy, whereas in the global south, they reflect the physician’s personal choices. The goal of this study was to contribute to knowledge on the communication patterns used in clinical practice in Mexico and to identify the determinants that favour a doctor–patient relationship characterized by low paternalism/autonomy. Methods A self-report study on communication patterns in (...) a sample of 761 mental healthcare professionals in Central and Western Mexico was conducted. Multiple ordinal logistic regression models were used to analyse paternalism and associated factors. Results A high prevalence of paternalism was observed among mental health professionals in Mexico. The main determinants of low paternalism/autonomy were medical specialty and gender, with female physicians being more likely to explicitly share diagnoses and therapeutic strategies with patients and their families. A pattern of highly explicit communication was strongly associated with low paternalism/autonomy. Finally, a modifying effect of age strata on the association between communication pattern or specialty and low paternalism/autonomy was observed. Conclusions Among mental health professionals in Mexico, high paternalism prevailed. Gender, specialty, and a pattern of open communication were closely associated with low paternalism/autonomy. Strengthening health professionals’ competencies and promoting explicit communication could contribute to the transition towards more autonomist communication in clinical practice in Mexico. The ethical implications will need to be resolved in the near future. (shrink)

This chapter contains sections titled: References.

Business and Society Review, Volume 126, Issue 1, Page 69-99, Spring 2021.

Desde inicios del siglo xx la filosofía parecía haber despachado la legitimidad del realismo, llamando a la descripción del mundo dentro de los límites de nuestra subjetividad. El agotamiento y los problemas de esta premisa filosófica han sido finalmente enunciados y señalados por el realismo especulativo. En el presente artículo mostramos de qué manera tres de sus representantes más reconocidos, Meillassoux, Harman y Gabriel, llevan a cabo esta tarea. Pero para evitar una posición ingenua, este realismo se expresa de forma (...) especulativa, es decir, a partir de argumentos lógicos, matemáticos y abstractos que no carecen de problemas. Después de una breve exposición de sus filosofías, presentamos problemas centrales en ellas que se derivan de una falta de reflexión sobre los recursos lógicos y matemáticos que emplean explícita o implícitamente. Mostramos que la constante en todos ellos consiste tanto en un desconocimiento de las paradojas de autorreferencia que ponen en juego, como en la falta de una teoría de relaciones reales que explique las relaciones sujeto-objeto y objeto-objeto. Concluimos con una breve referencia a Fréredic Nef para mostrar qué puntos debería considerar una teoría general de relaciones. (shrink)

La polarización, los populismos y la posverdad forman tres fenómenos sociopolíticos fundamentales para comprender cómo se está orientando la política en los sistemas demoliberales. La polarización política se suele entender como un proceso dinámico de activación de las divisiones entre dos o más grupos sociales en el transcurso de los debates públicos que puede terminar con una ruptura comunicativa o una comunicación fallida. Si bien los especialistas no coinciden a la hora de definir el populismo, se puede comprender como una (...) forma concreta de construir el pueblo mediante un discurso que contrapone este al anti-pueblo. La posverdad se referiría a una tendencia cultural donde las verdades de hecho sufren una merma en favor de las verdades vivenciadas subjetivamente. Estos fenómenos tienden a ser percibidos por una buena parte de la sociedad y del mundo académico como una amenaza grave para las bases pluralistas y reflexivas de la democracia. Sin embargo, esa consideración está decantada normativamente. Este artículo trata de explorar un marco referencial diferente, el emotivismo, y cómo, desde este ángulo, toman sentido los tres conceptos clave: polarización, populismo y posverdad. (shrink)

The contribution describes some aspects related to the representation of special curves; recalling mechanisms created specifically for the design of these curves, which have particular characteristics. Through the construction of a simple apparatus, consisting of two pendulums—which oscillate at the same time- it is possible to graphically reproduce Lissajous’ experiments on the commuting vibrations of the diapasons. This equipment was first built by Samuel Charles Tisley (London 1829-Unknown), under the name of harmonographer. The contribution aslo illustrates the essential characteristics of (...) the harmonograph—born as a means of analysing vibrations—but which, by its principle belongs to mechanics, for its applications to acoustic science and geometry for the ability to draw “harmonious” curves. (shrink)

En los últimos treinta años del s. XIX y los primeros del s. XX se produjeron algunas de las polémicas científicas y políticas sobre el evolucionismo más vigorosas que se recuerden en cada país. El propósito de esta obra, que incluye algunos de los diálogos polémicos efectuados sobre todo en Bolivia y México, es doble: por una parte, contribuir a la reelaboración del modelo de estudio de la transmisión de las ideas científicas, utilizando el evolucionismo como estudio de caso y, (...) por otra, recrear y analizar los diálogos y antidiálogos, los personajes, las instituciones, los textos y contextos de este período en diversos países de Iberoamérica. (shrink)

Octavio Paz has been known worldwide as a talented poet and essayist, but not as a sociologist. And yet his seminal work, The Labyrinth of Solitude, published in 1950 and containing Paz’s interpretation of Mexican history and identity, arrived at via his analysis of Mexican ‘myths’ or cultural forms, is rich in sociological content – particularly sociology of culture and sociology of knowledge. The author of this article, after noting that very few of the experts on Paz’s work have tried (...) to analyze in a serious and sustained manner its sociological content, has determined not only to decipher Paz’s method but to reveal its strong links to the sociology of form and content produced by the German sociologist and philosopher Georg Simmel. Thus, the main goal of this article is to apply Simmel’s methods to The Labyrinth of Solitude and to thereby (1) shed some light on the sociological aspects of Paz’s seminal work, thus bringing him the credit he deserves as an early Mexican sociologist, and (2) reveal the extent of Simmel’s influence – hitherto ignored or at least very much minimized – upon The Labyrinth. (shrink)